Authorities urged residents of Hamburg, Germany, to close their windows tightly early on Sunday, as a large fire engulfed several warehouses and sent black, chemical-laden smoke drifting over the city.
According to the German news agency DPA, the fire broke out around 4:30 a.m. in the Rothenburgsort district, located in the eastern part of Germany’s second-largest city. The smoke drifted from there toward the city center, halting trains between Hamburg and Berlin and other cities.
Authorities used a mobile app to warn Hamburg residents to close their windows, turn off ventilation and air conditioning, and avoid going outside. No injuries have been reported.